Sad iron.



No. 743,648. PATENTED NGV. 10, 1903.

W. W. LAMB.

SAD IRON.

APYLIOATION FILED HAB. 24. 1903.

H0 MGDEL.

2 SHEETS-SHEET 1 was au. PHG-@umm wwwa-mu, n. c.

No. 743,648. PATENTE) Nov. 1o, 1903.

W. W. LAMB.

SAD IRON.'

APPLIUATION FILED MAR. 24, 1903. N0 MODEL. 2 SHEETS-SHEET 2.

"a lg ///////////f///}4/4f////4// "yl l@ UNITED STAT-Es PatentedNovember 10, 190.3.

PATENT Fries.

W-ILBERT 1V. LAMB, OF SOUTH SIOX CITY, NEBRASKA, ASSIGNOR T O LAMB MFG.CO., A' CORPORATION OF NEBRASKA.

RON.

SPECIFICATIONi-orming part of Letters Patent No. 743,648, dated November10, 1903.

Appiiafion ined-Marotta, 1903.'

To all wir/0m, it may concern-, v Be it known that I, WILBERT W. LAMB, a

citizen of the United States, residing at South with anupwardlyextending column 6, upon `the upper end of which is mounted aswing- Sioux City, in the county of Dakota and State of Nebraska, haveinvented new and useful Improvements in' Sad-Irons, of which thefollowing is a specification.

This invention relates generally to gas gencraters and feeders, andparticularly to a device ot' this character which is adapted forapplication to a sad-iron.

The invention has for its object lthe provision of a gas generator andfeeder which is simple and inexpensive in construction and thoroughlyeffective in operation.

Other objects and advantages of the invention will be apparent from thefollowing' detailed description, and its novel features will be setforth in the claims. Y

In the accompanying drawings, forming a part of this specification, Ihave illustrated my improved gas generator and feeder in connection witha sad-iron, though the device may be adapted for use in otherconnections.

Referring to the drawings, Figure 1 is a side elevation of my improvedgas generator and feeder applied to a sad-iron. Fig. 2 is a rearelevation. Fig. 3 is a longitudinal central vertical section of the gasgenerator and feeder. Fig. 4 is a plan view of the iron with thecover-plate removed. Fig. 5 is a bottom plan of the cover-plate. Fig. 6is a bottom plan of the gas generator and feeder, a portion of theperforated plate being broken away. Fig. 7 is a transverse section onthe line 7 7 of Fig. 6, and Fig. 8 is a similar section on the line 8 8of Fig. 6.

Like charactersof reference indicate corresponding parts throughout theseveral views.

The reference-numeral 1 indicates the base of a sad-'iron adapted foruse' in connection with my improved generator and feeder. At itsinterior the hase 1 is hollowed out to provide a combustion-chamber 2.Extending through the side walls of the base 1 is a plurality of lateralair-passages 3. Each of the air-passages 3 is preferably upwardlyinclined, so that its inner end is in a higher plane than its outer end,and each passage terminates in a groove 4, which extends upwardly alongthe inner wall of the combus- ,tion-chamber.

Serial No. 149,296. (No model.)

At its upper end each of the grooves 4 terminates in a cut-away portion5. The base l at its forward endis provided ing arm 46, having anupwardly-extending lug or thumb-piece 47 thereon. The arm 46 is providedto hold the cover-plate of the iron in position, as will he apparent.

Adjacent to the column 6 in the extreme .forward upper end of the base 1is a semicircular cut-away portion 7, which is provided to receive thesupply-pipe leading from the hyd rocarbon-reservoir. The rear wall ofthehase 1 is cut away, as shown at 8, to receive the rear end of thegas-generator, hereinafter to he described. Adjacent to the upper endsof the cnt-away portion 8 are provided the V-'shaped notches 9, thepurpose of which will pense of manufacture.

The reference-numeral 12 indicates a hydrocarbon-reservoir, which mayloe of any desired shape and construction. At its upper end thereservoir 12 is provided with an inlet- 13, by which it may be filled.The inlet 13 is screw-threaded to receive the closing-plug 14. Extendingvertically through the closing-plug 14 is a passage 15, with whichcommunicates a laterally-extending passage 16. The upper end of thevertical passage 15 is screw-threaded to receive a needle-valve 17,which controls the vertically and laterally extending passages 15 and16. The passages 15 and 16 are provided to permit the entrance of airinto the reservoir 12 as hydrocarbon liquid is exhausted therefrom.

Leading from the lower end of the reservoir 12 is a supply-pipe 18,which communicates with the gas generator and feeder 19.

IOO

` passage 28 in the block 27.

The gas generator and feeder 19 is preferably cast in one piece frommetal, and its upper forward end is enlarged, as shown at 20. Theenlargement 2O is bored out and screw-thread-l ed to receive the lowerend of the supplypipe 18. The passage through the gas generator andfeeder 19 first extends from the end of the supply-pipe 18 in a lateraldirection through the enlargement 20, then in a downward direction, thenalong the side 21 of the generator, then in a lateral direction at therear end thereof, and then passes out at the rear end of the generator,as shown at 22. The passage just described through the generator may beproduced by suitable boring-tools, and the holes through which theboring-tools are passed may be closed by screw-plugs 23, as will bereadily understood.

On its under surface, at the side opposite the portion 21, the gasgenerator and feeder is hollowed out along substantially its entirelength, as shown at 24. A longitudinal projection 25 is cast on theupper surface of the gas generator and heater above the hollowedoutportion just described. Extending through the longitudinal projection 25from lthe rear end thereof and terminating at the center of thehollowed-out portion 24 is a passage 26, the purpose of which will behereinafter explained. A plate 35, provided with a plurality ofperforations 36, is held in place by screws 37 on the under surface ofthe generator and feeder 19 and covers the hollowedout portion 24therein.

The reference-numeral 27 indicates a block .of any suitable metal orother material secured to the rear end of the gas generator and feeder19. The block 27 at its upper end is provided with a passage 28, whichregisters With and forms a continuation of the passage 26, extendingthrough the projection 25 of the gas generator and feeder. At its lowerend the block 27 is provided with an integral extension 29. Extendingthrough the lower portion of the block 27 and through the extension 29thereon isa passage 30, which registers with the rear end 22 of thepassage leading through the gas generatorand feeder from the supply-pipe18. The upper end of the passage 30 terminates in a small-sized aperture3l, which is directed toward the upper A needle-valve 32 controls thepassage through the aperture 31. The sides of the block 27 are slightlyconcaved in a vertical direction, as shown at 38, to facilitate thefitting of said block in the cut-away portion 8 in the rear wall of thebase when the gas generator and feeder is in position, with itssupply-pipe 18 fitting in the cut-away portion 7 at the front end of thebase 1.

A cover-plate 39, provided with a cut-away portion 40 to receive theupper end of the column 6 on' the base 1 and also provided with anupright 41 at its forward end and an upright 42 at its rear end, isprovided to retain the generator and feeder firmly in position withinthe combustion-chamber of the base 1. A handle 43 for the iron isattached to the upper ends of the uprights 4l 42, and a circularheat-guard 44, attached at its ends to the uprights 4l 42, is providedbelow the handle 43. A

The lower end of the rear upright 42 onthe cover-plate 39 is flaredoutwardly at its base, as shown at 48 49, and a downwardly-extending lug50 is provided upon the lower end of said upright, as shown. When thecover-plate is in position upon the base 1, the flared portions 48 49 ofthe upright 42 tit into the V- shaped notches 9 at the upper end of thecutaway portion 8 in the rear wall of the base, and the lug 50 restsupon the top of the block 27, attached to the rear end of the gasgeneratoi` and feeder, effectually holding said block within thecut-away portion 8 of the rear wall of the base.

It will be seen that the V-sliaped notches 9 in the rear wall of thebase, the dared Aportions 48 49 of the upright 42, and the screw 47,passing through the eye in the arm 46 into the column 6 of the base 1,provide means for firmly retaining the cover-plate 39 upon the base 1.

Constructed as above described the operation of my improved device willbe readily understood. The gas generator and feeder is first placedwithin the combustion-chamber of the base 1,- the block 2-7 fitting inthe cut-away portion 8 in the rear wall of the base and the supply-pipe18 fitting in the cut-away portion 7 at the forward upper end. of thebase 1. The cover-plate 39 is then applied and firmly secured inposition, as described. By opening the needle-valve 17 in the plug 14 ofthe hydrocarbon-reservoir and the needle-valve 32 in the block 27a'supply of hydrocarbon liquid is permitted to flow into the cup-shapeddepression 11 of the base l. This supply of hydrocarbon liquid whenignited serves to initially heat the block 27 and vaporize thehydrocarbon passing through the passage therein. The hydrocarbon vaporjets through the aperture 31 into the upper passage 28 of the block 27and passage 26 of the gas generator and feeder. Passing along thepassage 26 the vapor enters the hollowedout portion 24 at the lower endof the gas generator and feeder and is ignited below the perforatedplate 35. The flame emerging from the perforations of the plate 35serves to effectually heat the sad-iron.

It will be observed that the passage through the gas generator andfeeder from the supply-pipe of the reservoir to the delivery-aperture 31passes alongside of the hollowedout portion 24, as shown at 21. When theburner is in operation, the portion 21 of the gas generator-and feederthrough which hydrocarbon passes is highly heated, and the hydrocarbonis consequently thoroughly vaporized when it reaches thedelivery-aperture 31.

With self-heating sad-irons as usually constructed the hydrocarbon vaporfrom the de- IOC IIO

livery'aperture 31 is jetted into a perforated tube, which extendslongitudinally of the combustion-chamber in the base of the iron. Thelobjection to this form of iron is that the force with which thehydrocarbon vapor enters the perforated tnbe from the deliveryaperturecauses it to pass to the forward end of the perforated tube before it iseffectually mixed with air and ignited. This results in the forward endof the sad-iron being heated to an excessive degree, While the rear endthereof is only slightly heated. By my arrangement the vapor isdelivered in a downward direction to the center ofthe hollowedoutportion 24: at the bottonrof the generator and feeder and is evenlydistributed throughout the combustion-chamber of the iron, causing allthe parts thereof to be uniformly heated. Itwill be observed that thejet of vapor issuing from the aperture 31 is supplied With air asv itenters the passage 28 of the block 27 and also receives an additionalsupply of air through the lateral passages 3 in the base of the iron.

If desired, compressed air may be supplied to the hydrocarbon-reservoi rthrough its closing-plug from any suitable source of supply. Suchcompressed air will produce a steadier and stronger llame and aidcombustion generally.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

l. In a sad-i ron, the combination with a base havingacombustion-chamber and a cut-away rear Wall provided with notches, thecnt-away portion of said Wall being open at its upper end, a gasgenerator and feeder in said base removably fitted at one end into saidcut-away rear Wall, said gas generator and feeder cornprising anintegral body having a hollowedout portion, a supply passage leadinginto said holloWed-out portion, and a vaporizingpassage adjacent to saidholloWed-ont portion g and a removable cover-plate for retaining saidgas generator and feeder in position, said cover-plate having adovetailed portion adapt-y ed to lit the notches in the rear wall ofsaid havinga combustion-chamber and a cut-away rear wall provided withnotches, the cut-away portion of said rear wall being open at its npperend, a gas generator and feeder in said base removably fitted at one endinto said cntaway rear Wall, said gas generator and feeder comprising anintegral body having a holloWed-out portion, a supply-passage extendingalong said body and leading into said hollowed-out portion at an angle,and a Vaporizing-passage extending around said hollowedout portion; anda removable cover-plate for retaining said gas generator and feeder inposition, said cover-plate having a dovetailed portion adapted to fitthe notches in the rear Wall of said base.

3. In a sad-iron, the combination of a base having a combustion-chamberand a cut-away x rear wall provided with notches, the cut-away portionof said rear Wall being open at its upper end, a gas generator andfeeder in said base, removably fitted at its rear end in said cut-awayWall, said gas generator and feeder comprising a body having aholoWed-out pory tion, a perforated plate covering said holloWed-outportion, a passage integral with said body extending along the uppersurface and leading downwardly into said holloWed-out portion, and avaporizing-passage extending around said holloWed-out portion; and aremovable cover-plate for retaining said gas generator and feeder inposition, said coverplate having a dovetailed portion adapted to lit thenotches in the rear wall of said base.

4. In a sad-iron the combination of a base having a combustion-chamberanda cu t-away and notched rear Wall, a gas generator and feeder in saidbase, the rear end of said gas generator and feeder fitting intosaidcut-away rear. Wall, a cover-plate having a dovetail portion fittinginto the notches of said rear wall, and means for retaining the forwardend of said cover-plate in position upon said base.

In testimony whereof I have hereunto set my hand in presence of Vtwosubscribing witnesses.

WILBERT W. LAMB.

Witnesses:

A. J. K-RAMPER, G. W. TAYLOR.

